Stock regulator for paper-making machines



` partition 7 has an WILLIAM J. SHERIDAN, F ROCHESTER NEW YORK.

STOCK REGULATOR FOR PAPER-MAKING MACHINES.

Application filed March 13, 1926. Serial No. 94,567. l

The object of this inventi a device that will regulate t oil is to provide he-feed of stock to a paper making machine so as to secure a uniform feed of the stock the machine will notclog up and the stock will be uniformly fed, and

to the end that that paper of a uniform thickness will be made.

This and other objects of the invention will be fully scribed in the specification in the claims at the end the In the drawing: The drawing is a perspec improved stock feed regulator.

illustrated in the drawing, de-

and pointed out reof. l

tive view of my In .the `drawing like reference numerals indicate like parts. Reference numeral 1 indicates a vat hav# ing the sides 2, ends 3 and vat is shown partly broken' is divided by the partitions bottom it. The away. This vat 5, 6 and 7. The

partition'` 5, has an openino at the bottom thereof. The partition 6 about midway from top to -ias an opening bottom and the opening near the top thereof. These partitions divide off the vat into the compartments 9,10,

11 and l2. :The

openings in the partitions `allow the pulp to dow from the rig-ht hand l side of the tank to the left hand side as shown inthe drawing.

The pulpis pumped up throughV theffeed pipe 8 into the compartment 9 and flows from there into the compartment 10 and from there into the compartment 11 from which, opening 15 into the pipe 16 of it passesl over into .the

1rom which it Hows back part of the pulp passes through the and the balance compartment 12 into the vat where t is mixed with other stock and in time is again pumped through the feed pipe 8 and is caused to go through peatedly until it above pointed out. is provided a hollow tangular in shape.

In the the appara-tus repasses into the pipe 16 as compartment 9 float 2O which is rec- The float is slightly Smaller than the compartment in which it is adapted to rise and falli This float iscarried upon a bracket 2l which is suspended from a walking beam 22 which is pivoted on a stud or spindle 23 which is supported on a bracket 24 mounted on the partition 6.

Beyond the 'spindle is provided a link 25, the upperend of which is threaded and passes through the walking beam 22. F rom the bottom of this, link swings a tube 26 which loosely fits in the pipe 16 and acts Aas a loose fitting valve therei n` in connection with the opening 15. ln the far end of the walking beam 22 is an eye screw 27 to which is connected the Vsprings 28 and 29 which are fastened to suitable stops above and below the walking beam Vby which theleft handl end of the lbeam normally held in a position that is substantially uniform but nevertheless permits the beam to swing within a small limit. The ends of the springs 28 and 29 can be adjusted up or down so as to vary the normal position of the ends of the beams.

The'bracket 21 is provided with holes in which are inserted pins 30. @ne of these pins engages a suitable opening or bearing in the reduced end of the walking beam 22 is made so that normally it will one-half submerged. The faste;` flows into the pipe 8 and the thicker the stock will be, the higher the Hoat will stand in the compartment 9. As the right hand end of the walking beam 22 rises with the float .the left hand end of the beam will swing down and carry with it the tubular valve 26 tending to close the opening 15 more and more thereby. When the float 2() falls the right hand end of the bea-m 22 vswings down with it and the left hand end ofthe beam 22 swings up and raises the tubular valve 26 permitting more stock to flow through the opening 15.

The stock that accumulates around the ioat usually becomes too thick and to offset this and keep it of the right consistency, l provide a water pipe 85 having a Valve 36 therein which feeds water to the shower 37 which has a large number of small perforations therein from which. water is sprayed onto the stock from above. This serves to keep the stock from getting too thick around the float. Y

As the stock nient f), it varies in consistency due to uncvou l'uixiug in the vat.. lf the stock is too thick it will feedfastr tothe machine than itA ought and cause the -paper to run thicker than it should.

fed up into the comp-art If the stock is too thin thel beam will swing to correspond.)

pulp-will feed slower to the machine and cause the paper to run thinner' on the machine than it should be. My device oper- -ates to feed the paper stock uniformlyv and secure the making of paper of uniform thickness as follows. As long as the stock remains' uniform in the compartment 9 the iioat 20 willvstay fat the same height. XVhen the stock gets thicker in the compartment 9 the level of it rises and carries'up the float 20 and in so doing the walking beam 22 swings so as to push the tubular valve 26 down in the pipe 16 partially closing the opening and retarding the flow of stock through said opening. This reduces thel amount of stock that passes to the machine. The Vfloat will'remain'up as long as the stock remains too thick `which may be/until the whole vat is emptied. If the stock from the next, vat runs thin theh the float 20 will drop causing the valve 26. to rise and this will permit more stock to flow to the machine..

vIf the machine is making tissue paper, less stock will be fed to the machine than if it is making paper of heavier grades. This necessitates an adjustment of the valve 26 which is provided for by means of the thumb nuts 40 and 41 which can beturned to raise or lower the -valve with reference to lthe walking beam 22. In this way the valve can be adjusted to feed the correct amountfor paper of any desired thickness.

In an apparatus heretofore used each of the compartments is about 221/2 inches high and 14 inches square except the last onev which may be somewhat smaller than the others. will normally stand in the compartment 9, several inches higher than in the compartment 10 and the pulp will stand in compartment 10 several inches higher than in compartment 11.v To secure this distribution'the opening at the bottom of partition 5 ismade somewhat smaller than the opening' in the partition 6. This will cause the stock to rise to a considerable height in thel compartment 9 securing better. regulation and less rapid changes in the position of the ioat.

I have provided a vpipe 50 -With a valve therefor by directly., into the valve tube 26 through which it passesv to mixwith the stock in the tube 16 to thin it out if necessary.

It wil-l be understood that the compartment 10 and-partition 6 may be omitted in which case the stock will discharge through the openingat the bottom of the partition 5 directly into the bottom of the compartment 11 and feed into the tube 16. In such case the walking beam 22 will be shortened up and the bracket 24 therefor will be fastenedv to the top of the partition 5. The

bracket 24 can be made with a quarter turn so as to rest on the partition 5 and avoid the pipe 37. v

As illustrated in the drawing, the -float 2O This plate extends beyond the side walls of the float 'in said first pipe into It will be understood that the pulp which water may be discharged erratic movement of the float due to sudden changesin the level of the vat.

I claim:

1. In an apparatus 'for regulating the fiow of pulp, the combination of a vat having an outlet in the bottom thereof, a pipe mounted in said outlet and projecting into the inside of s'aid vatsaid pipe having an opening in theside thereof near the outlet of said vat, a second pipe suspended in said first pipe, and means for raising-and lowering said second pipe in said first pipe to regulate the flow of pulp thruthe opening the outlet of said vat.

2. In an apparatus for regulating the flow of pulp, the combination of pair of vate, one of said vats havingan inlet in its bottom and the -other of said vats having au outlet in its bottom, a stationary pipe having an elongated opening in the side thereof mounted in the outlet of Said vat, a second pipe suspended within said stationary pipe, a float in the other of said vats, a walking beam connecting said iioat with' said second pipe to-raise and lower said second pipe within said stationary pipe with'relation to the movement of said float.

3. In an apparatus for regulating the flow of pulp with relation to its consistency, the combination of a-vat,'a partition separating said vat into two compartments', -an inlet in the bottom of one of said ycompartments and an outlet in the bottom of the other of said compartments, a stand pipe having an opening in the side mounted in the outlet of saidcompartment, a 'movable pipe suspended within said stand pipe and adapted to regulate the flow of pulp thru the opening into said stand pipe, a fioat pulp within the -suspended in the other of said compartments AWater supply feeding a predetermined volume of water mto said compartment around said float.

4. Inan apparatus for regulating the flow of pulp with relation to its consistency, the combination of a vat, a partition separating vsaid vat into two compartments, an inlet in the bottom of one of said compartments and an outlet in the bottom of the other of said compartments, a stand pipe having an opening in the side. mounted in the outlet of said compartment, la movable pipe suspended withinsaid stand pipe and adapted to `regulate the flow of ,neiaesa pulp thru the opening into said stand pipe, a float suspended 'in the other of said compartments and means 'connecting said float with said movable-pipe Ito raise .or lower said pipe relativey to the movement of said float, a water Supply feed* ing a predetermined volumejot water into l `4said compartment :around saidoat, a seo-4 in its bottom,

vond. water supply feeding water. into"y said standpipe to dilute'the pulp, 'passingy from the compartment thru the opening in sa'idstandpipe.l

'5. .ln an apparatusfforegulating the flow' of pulp," the combination-ofa pair ovats;

oneOf said vats having an' inlet in itsbotton and the other of said vats having anoutlet a stationary pipe having an elongated opening in the side thereof mounti- .connecting saidiloat with said second pipe r vat havingan opening adjacent toits bottom V of vats above the bottom ed--in theoutlet of saidvat, agsecond pipe suspended within said stationary pipe, a float in the other of said vate, a walking beam to raise' and lower said Second pipewithin said stationary pipe with relationio the' movementof said float, a third vat inter posed between said pairof vats,sa'id third `and leadingfrom one of said pair of vats and an opening in the side .of saidv thirdv vat, a predetermined distance above its' bottomand leading into the other of said pair thereof.

6. In an apparatus for regulating the How of pulp, the combination oil? a pair of vatS,

one of said vats'having an'inletin its bottom andthe "other of said vats havin an outlet in its bottom, a stationarypipe aving an* elongated opening in the side thereof mounted vin the outlet of -said`vat,ga Second pipe suspended withisaid -said valve,

Stationary pipe, a fioat in the other of. said vats-a walking beam connecting said float in' the other of said vats, a-walking beam-connecting said float'with said second pipe to raise and lower said second pipe 'within `said stationary pipe withl relation to the movement of said float, a third' vatinterposed between said pair of vats,vsaid third vat having an opening` adjacent to its bottom and leading from one :ofsaid pairof va'ts vand an opening inthe sideof said third vat, a' predetermined distance above its bottom and leading into the other oitsaid pair of vats abovethe bottom thereof, an-,overiow leading from said last named vat.

' 7 'In an apparatus for regulating the iow of pulp, the combination of a regulating valve,. a float controlling the operation of --teninsaid tube, said tube having an opening in the side thereof, a oonnectingbeam fulerumed `between said vatsv and connecting said loat with said cylinder and adapted to hold said cylinder suspended within said tube and move it up or down opposite'to the vopening in saidtube tocontrol thejow of the pulp from the -vat into the outlet.

'In testimony whereof I affix my signature..

WM. J. smile-imm a flange surrounding said float and. water surrounding said float 

